Emerson PN 51-1055pHC/rev.K Recommended Sensors, Frequency Range 0.5 4000 Hz, Repeatability ±1%

MODEL SOLU COMP II	SECTION 1.0
	DESCRIPTION AND SPECIFICATIONS

FLOW

(Standard on all models or stand alone, Code -23 and/or -33)

For use with most pulse signal flow sensors, the Solu Comp II's user selectable units of measure include flow rates in GPM (Gallon per minute), LPM (liters per minute), or m3/hr (cubic meters per hour), and veloci- ty in ft/sec or m/sec. When configured to measure flow, the unit also acts as a totalizer in the chosen unit (gallons, liters, or cubic meters).

Dual flow instruments can be configured as a % recovery device or a flow difference device.

RECOMMENDED SENSORS

+GF+ Signet 515 Rotor-X Flow sensor Model 515/8510-XX (PN P51530-PO)

Fluidyne Flow Sensor Model 2300A (PN Hydro-Flow-2300-A-10-5R-3-1-1)

Consult factory for other pulse type sensor compatibility.

PERFORMANCE SPECIFICATIONS

Frequency Range: 0.5 - 4000 Hz

Flow Rate: 0 - 9999 GPM, LPM, m3/hr

Totalized Flow: 0 - 9,999,999 Gallons;

37,850,000 Liters; 37,850 m3 Accuracy: ±1% (±1.5% from 3000 to 4000 Hz)

Repeatability: ±1%

S2 12.34 GPM

S2 47.25K Gal

FREE AND TOTAL CHLORINE (Code -24)

When used with a chlorine specific membrane-covered amperometric sensor, display choices are free chlorine or total chlorine. (Total chlorine measurement requires the use of the Model SCS921 or other sample condi- tioning system). Because the permeability of the mem- brane is a function of temperature, a correction is nec- essary when the sensor is used at a temperature dif- ferent from the one at which it was calibrated. The Solu Comp II automatically applies the temperature correction factor. The process temperature is meas- ured by an RTD in the sensor. An input filter allows the user to configure the analyzer for rapid response or low noise. The low noise option is recommended for samples containing less than 0.1 ppm chlorine.

pH is also a factor in the measurement of free chlo- rine. An aqueous solution of free chlorine is a mixture of hypochlorous acid and hypochlorite ion. The rela- tive amount of each depends on the temperature and pH. Generally, increasing the pH and temperature reduces the amount of hypochlorous acid in the mix- ture. Because the response of the sensor to hypochlorous acid is greater than its response to hypochlorite, accurate determination of chlorine requires knowledge of the pH and temperature of the sample. If the pH is relatively constant, a fixed pH cor- rection factor can be entered into the analyzer. If the pH is greater than 7 and fluctuates by more than 0.2, continuous measurement of the pH and automatic pH correction is necessary. For automatic pH correction, select code -32 and an appropriate pH sensor.

PERFORMANCE SPECIFICATIONS

Measurement Range: 0-20 ppm (mg/L) chlorine (as Cl2)

Resolution: 0.001 ppm

Automatic pH Correction (requires Code -32): 5.0

to 9.5 pH

Temperature Correction: Automatic (with Pt100 RTD in sensor) or manual 0-50°C. Can be disabled if desired.

Input filter: time constant 1 - 999 sec

RECOMMENDED SENSORS

Chlorine: 499A CL-01 Free Chlorine or 499A CL-02 Total Residual Chlorine (requires sample condi- tioning)

pH: 399-09-62, 399VP-09, 399-14

12.34ppm

26.3C 8.34pH

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